How do you pass pee test in 36 hrs for THC?

With your own pee? You'll need more than 36 hours to pass a urine test, assuming that you've smoked more than once in the past couple days. To give you a more accurate answer, more information is needed. Are you a frequent user or not? When is the last time you smoked? How much did you smoke in the month prior to your last session? For example, if you only smoked once a week ago, you shouldn't have anything to worry about. On the other hand, if you like to smoke daily, you'll have to wait at least 2 weeks. Two weeks would be the bare minimum and would apply only to someone who is physically active and fit.